Half noisy records why?

[paras0710]

Hi everybody i have some records which shows this strange phenomena. These discs have no physical scratch and are very good and shiny but these LPs are little bit noisy(have crackling sound) near the edges/start but as needle moves toward centre the noise fades and untimately vanish near middle of the record. Anybody know why? I read fidelity decreases as stylus moves inward.

Points i dissmised as reason for this are
- not a record player problem. As i tried different players from ceramic to linear tonearm.
- previous owner of records have player problem- As different records are from different places.

 

[reubensm]

As your stylus moves across a record, from the sides to the center, differences in sound quality or everything that you hear eventually, usually relate to tracking and alignment issues of your tonearm, headshell or cartridge. Outside this reason, worn or clogged stylus can also cause differences. Tracking usually becomes more critical as your tonearm move towards the center of the record. The information you have provided is very basic but what I would assume based on what you say, your tonearm or cartridge alignment is slightly off. Hence as the tonearm moves towards the center, there is a loss of highs, loss of output (marginal), stylus not engaging properly with the grooves (any one of these or combinations of these scenarios. My advise would be to check the stylus, then realign the tonearm and cartridge and then run a check.

 

[quad]

Could be "pressing problems" -

This is What "Non-Fill" Looks Like | Analog Planet

 

[paras0710]

Thanks for replies. I dont think its arm/cartridge alingnment problem as i said i also tried linear tonearm turntable(the one i mostly used on lazy days because of both side playback in one go) which dont have any mechanical caliberation options.

Yes could be pressing problem but the records i am talking about dont have strings of pearl(at least from the looks) problem though i have 2 records( 1 pink colored other is black) which shows this strings of pearl visual effect but they sounds perfectly good.

 

[jls001]

I have also observed that many records sound noisy at the starting groove before the first track begins, and upto some point of the first track, then become quiet thereafter. This happens on freshly cleaned records too. My theory is that due to constant handling where we usually touch the edge of the record some grime and dirt get accumulated. It is also possible that the grooves in the periphery are more worn due to handling. As I said, just a thought. Would love to know the real reason, and solution to cure or avoid it (if known and available).